Archiv von Montag, 28 April 2014 anzeigen

Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2014 Apr 28 1232 UTC

Vorhersage des SIDC

Sonneneruptionen

Eruptive (C-class flares expected, probability >=50%)

Geomagnetismus

Active conditions expected (A>=20 or K=4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
28 Apr 2014	120	014
29 Apr 2014	124	008
30 Apr 2014	124	005

Bulletin

Six sunspot regions are visible at the front side of the solar disk. All have a simple alpha or beta magnetic configuration. The background of the GOES Xray flux is at B-class level and no noteworthy flares were measured. A weak CME erupted towards the north, first visible in LASCO/C2 at 5:36 UT on 28 April. It can hardly be called a partial halo CME and does not seem to be Earth directed. C-class flaring activity can be expected for the next 48 hours. Solar wind speed is relatively stable with values between 300 to 350km/s. The magnitude of the interplanetary magnetic field was maximally 5 nT with a mainly negative Bz. Geomagnetic conditions were unsettled and are expected to remain as such. An isolated time slot of active conditions is possible at arrival of a high speed stream related to the coronal hole that passed the central meridian early on 24 April.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 057, basierend auf 10 Stationen.

Solarindizes für den 27 Apr 2014

Wolf-Zahl Catania	///
10cm Solarflux	118
AK Chambon La Forêt	009
AK Wingst	004
Geschätzer Ap-Wert	003
Geschätzte internationale Sonnenfleckenzahl	057 - Basierend auf 21 Stationen

Zusammenfassung auffälliger Ereignisse

Zur Verfügung gestellt vom Solar Influences Data Analysis Center© - SIDC - Verarbeitet von SpaceWeatherLive

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